Trace element
A trace element is a chemical element whose concentration (or other measure of amount) is very low ( a "trace amount"). The exact definition depends on the field of science:
* In analytical chemistry, a trace element is one whose average concentration of less than 100 parts per million (ppm) measured in atomic count or less than 100 micrograms per gram.
* In biochemistry, a trace element is a dietary element that is needed in very minute quantities for the proper growth, development, and physiology of the organism. For example, magnesium is a trace metal.
* In geochemistry, a trace element is one whose concentration is less than 1000 ppm or 0.1% of a rock's composition. The term is used mainly in igneous petrology. Trace elements will be either compatible with a liquid or solid phase
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Trace element
A trace element is a chemical element whose concentration (or other measure of amount) is very low ( a "trace amount"). The exact definition depends on the field of science:
* In analytical chemistry, a trace element is one whose average concentration of less than 100 parts per million (ppm) measured in atomic count or less than 100 micrograms per gram.
* In biochemistry, a trace element is a dietary element that is needed in very minute quantities for the proper growth, development, and physiology of the organism. For example, magnesium is a trace metal.
* In geochemistry, a trace element is one whose concentration is less than 1000 ppm or 0.1% of a rock's composition. The term is used mainly in igneous petrology. Trace elements will be either compatible with a liquid or solid phase
has abstract
A trace element is a chemical ...... mical formula of that mineral.
@en
Als Spurenelemente oder auch M ...... chemischer Elemente abweichen.
@de
En chimie analytique, une trac ...... nc des teneurs très variables.
@fr
In chimica analitica un oligoe ...... ronutriente assunto in tracce.
@it
Рассеянные элементы — химическ ...... индий, скандий, германий и др.
@ru
العنصر الشحيح أو العنصر الزهيد ...... تعدد الغليان فائدتها الغذائية.
@ar
稀有元素是自然界中储量、分布稀少（一般地壳丰度为100ppm ...... 子能等工业领域属于关键性材料。常用的稀有金属有锂、钛、镭等。
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Wikipage page ID
Wikipage revision ID
742,753,836
hypernym
type
comment
A trace element is a chemical ...... e with a liquid or solid phase
@en
Als Spurenelemente oder auch M ...... chemischer Elemente abweichen.
@de
En chimie analytique, une trac ...... aximales de certains composés.
@fr
In chimica analitica un oligoe ...... ronutriente assunto in tracce.
@it
Рассеянные элементы — химическ ...... индий, скандий, германий и др.
@ru
العنصر الشحيح أو العنصر الزهيد ...... لوغرام على عكس العناصر الكبرى.
@ar
稀有元素是自然界中储量、分布稀少（一般地壳丰度为100ppm ...... 子能等工业领域属于关键性材料。常用的稀有金属有锂、钛、镭等。
@zh
label
Oligoelementi
@it
Spurenelement
@de
Trace (chimie)
@fr
Trace element
@en
Рассеянные элементы
@ru
عنصر شحيح
@ar
稀有元素
@zh